Acquisition- Intangible Assets, Goodwill and Other (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Goodwill [Line Items]
Beginning Balance	$ 36,647
Goodwill, Acquired During Period	13,984
Ending Balance	50,631
Television
Goodwill [Line Items]
Beginning Balance	35,912
Goodwill, Acquired During Period
Ending Balance	35,912
Radio
Goodwill [Line Items]
Beginning Balance	735
Goodwill, Acquired During Period	13,984
Ending Balance	$ 14,719